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Emily E. Scott Jack Cerchiara Jenny L. McFarland Mary Pat Wenderoth Jennifer H. Doherty 《科学教学研究杂志》2023,60(1):63-99
In recent years, there has been a strong push to transform STEM education at K-12 and collegiate levels to help students learn to think like scientists. One aspect of this transformation involves redesigning instruction and curricula around fundamental scientific ideas that serve as conceptual scaffolds students can use to build cohesive knowledge structures. In this study, we investigated how students use mass balance reasoning as a conceptual scaffold to gain a deeper understanding of how matter moves through biological systems. Our aim was to lay the groundwork for a mass balance learning progression in physiology. We drew on a general models framework from biology and a covariational reasoning framework from math education to interpret students' mass balance ideas. We used a constant comparative method to identify students' reasoning patterns from 73 interviews conducted with undergraduate biology students. We helped validate the reasoning patterns identified with >8000 written responses collected from students at multiple institutions. From our analyses, we identified two related progress variables that describe key elements of students' performances: the first describes how students identify and use matter flows in biology phenomena; the second characterizes how students use net rate-of-change to predict how matter accumulates in, or disperses from, a compartment. We also present a case study of how we used our emerging mass balance learning progression to inform instructional practices to support students' mass balance reasoning. Our progress variables describe one way students engage in three dimensional learning by showing how student performances associated with the practice of mathematical thinking reveal their understanding of the core concept of matter flows as governed by the crosscutting concept of matter conservation. Though our work is situated in physiology, it extends previous work in climate change education and is applicable to other scientific fields, such as physics, engineering, and geochemistry. 相似文献
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This study contributes to the understanding of early childhood educators’ and parents’ attitudes and practices in relation to outdoor risky play for children. This study included 26 early childhood educators and 112 parents in rural and metropolitan areas of Australia and the United States. Participants completed an online survey about their perspectives and practices related to the provision of opportunities for children to engage in outdoor risky play. Questions also investigated reasons that prevented participants from providing such opportunities for children. Findings indicated that most educators thought it was important for children to be provided opportunities for outdoor risky play and did provide appropriate activities. Types of outdoor risky play opportunities fell into the categories of supporting large motor skills, supporting free exploration of the environment, and supporting assessment of risk. However, educators located in Australia rated outdoor risky play opportunities as significantly more important compared to educators in the US. Many parents also felt outdoor risky play was important and provided appropriate activities. Opportunities provided by parents fell into the same categories as educators, with additional features of nervousness and a desire to avoid hovering. Many parents identified the young age of the child and safety concerns as barriers. Implications for research and practice are discussed. 相似文献
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The relation of attachment security to adolescents' paternal and peer relationships, depression, and externalizing behavior 总被引:5,自引:2,他引:3
The relation of attachment security to multiple domains of psychosocial functioning was examined in a community sample of 167 early adolescents. Security of attachment organization, assessed using the Adult Attachment Interview, was linked to success in establishing autonomy while maintaining a sense of relatedness both with fathers and with peers, even after accounting for predictions from qualities of the mother-teen relationship. Growth curve analyses revealed links of insecurity to increasing patterns of externalizing behavior and higher and stable patterns of depressive symptoms across adolescence. Implications for a developing theory of the connections of the attachment system to multiple domains of functioning in adolescence are discussed. 相似文献
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This article is an account of the decision by an independent school to participate in its local Healthy Schools Scheme. One of the factors that influenced this decision was the value the school gained from a pupil survey. The same survey was used to track the impact of the school's Personal, Social and Health Education curriculum and pastoral work on pupils' experience of the school, and academic achievement. In particular, the authors explore the role of survey analysis and consultancy advice in interpreting survey results and developing school practice. The survey contributed to pupil participation in school development. The use of an external consultant as critical friend was perceived as an aid to school reflection and self-review. 相似文献
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Kenneth W. Merrell Steven J. Gill Holly McFarland Todd McFarland 《Psychology in the schools》1996,33(3):185-191
As part of the validation research process for a new self-report social-emotional test for children, internalizing social-emotional symptoms (e.g., depression, anxiety, social withdrawal, somatic complaints, positive and negative affectivity) of a group of elementary-age gifted students (n = 65) were contrasted with those of a carefully matched (by gender and age) comparison group of non-gifted students (n = 65). Subjects completed the Internalizing Symptoms Scale for Children (ISSC) (Merrell & Walters, 1996), a self-report measure of internalizing symptoms, affect, and cognition. The gifted students reported significantly fewer internalizing symptoms than did the comparison group. An analysis of critical items separating the two groups indicated that the gifted students differed most substantially from their non-gifted peers on ISSC items that relate to self-efficacy and perceived self-importance. Although these types of self-perceptions are considered to be a peripheral rather than a central component of specific internalizing disorders, it is hypothesized that their positive presence in children may act as a “buffering” factor, possibly insulating children from insults to their social-emotional functioning that may lead to the development of internalizing forms of psychopathology. The results of this investigation are discussed in terms of their relationship to conflicting previous research in this area, to future research needs in the study of social-emotional symptoms and development of gifted children, and in terms of the construct validity evidence for the ISSC. © 1996 John Wiley & Sons, Inc. 相似文献
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